輪式、履帶式起重機的行駛狀態穩定性

行駛狀態穩定性包括行駛狀態縱向穩定性和行駛狀態橫向穩定性兩個方麵。

①行駛狀態縱向穩定性

起(qi)重(zhong)機(ji)設(she)計(ji)時(shi)規(gui)定(ding)了(le)該(gai)機(ji)所(suo)允(yun)許(xu)的(de)爬(pa)坡(po)角(jiao)，當(dang)坡(po)角(jiao)超(chao)過(guo)規(gui)定(ding)值(zhi)時(shi)，前(qian)輪(lun)輪(lun)壓(ya)可(ke)能(neng)變(bian)為(wei)零(ling)。這(zhe)種(zhong)情(qing)況(kuang)下(xia)，起(qi)重(zhong)機(ji)將(jiang)無(wu)法(fa)控(kong)製(zhi)轉(zhuan)向(xiang)，稱(cheng)為(wei)起(qi)重(zhong)機(ji)失(shi)去(qu)行(xing)駛(shi)穩(wen)定(ding)性(xing)；當(dang)起(qi)重(zhong)機(ji)在(zai)坡(po)道(dao)上(shang)的(de)下(xia)滑(hua)力(li)接(jie)近(jin)驅(qu)動(dong)輪(lun)上(shang)的(de)附(fu)著(zhe)力(li)時(shi)
，車(che)輪(lun)會(hui)出(chu)現(xian)打(da)滑(hua)現(xian)象(xiang)
，使(shi)車(che)輛(liang)不(bu)能(neng)上(shang)坡(po)，這(zhe)也(ye)是(shi)一(yi)種(zhong)失(shi)去(qu)穩(wen)定(ding)性(xing)的(de)現(xian)象(xiang)。履(lv)帶(dai)起(qi)重(zhong)機(ji)上(shang)坡(po)時(shi)可(ke)能(neng)沿(yan)後(hou)傾(qing)覆(fu)軸(zhou)線(xian)傾(qing)翻(fan)，下(xia)坡(po)時(shi)可(ke)能(neng)沿(yan)前(qian)傾(qing)覆(fu)軸(zhou)線(xian)傾(qing)翻(fan)，也(ye)是(shi)失(shi)去(qu)行(xing)駛(shi)縱(zong)向(xiang)穩(wen)定(ding)性(xing)。

②行駛狀態橫向穩定性

主要是輪式起重機在轉彎行駛時
，受到轉彎離心力、hengxiangfenglidezuoyong，haiyouqizhongjizhonglidehengxiangfenlihefuzhelizuoyong。dangzhexielishiqupinghengshi

，qizhongjijiuhuihengxiangdahuahuofanche，zhejiushisangshilehengxiangwendingxing。kejian，qizhongjizaibaozhengzongxianghehengxiangbushiwenzhuangtaixiacainengbaochizhengchangxingshi。